using namespace Windows::Devices::Bluetooth;

__declspec(dllexport) void CloseBleDeviceUnmanaged(BluetoothLEDevice device)
{
    if (device.ConnectionStatus == BluetoothConnectionStatus::Connected) //no complaints for a property
    {
        device.GetDeviceSelector(); //no complaints for a method either
        device.Close(); //Error C2039 | 'Close': is not a member of 'Windows::Devices::Bluetooth::BluetoothLEDevice'
    }

    return;
}